Answers
Related Questions
what is the area of this trapezoid?
Answers
a mine worker discovers an ore sample containing 500mg of radioactive material. it is discovered that the radioactive material has a half life of 1 day. find the amount of radioactive material in the sample at the beginning of the 7th day.
Answers
Answer:
The miner would have 3 1/2 of radioactive material in the sample at the beginning of the 7th day.
Step-by-step explanation:
hope this helped!
The floor of the entryway to an office building will be triangular. Two angles of the triangle will measure 40°, and the side between them will have a length of 8 meters. Make a scale drawing of the entryway using a scale of 1 cm : 2 m. Explain how you made your drawing.
Answers
Answer: The drawing in the attached figure
Step-by-step explanation: we know that
An isosceles triangle, has two equal sides and two equal interior angles
In this problem, the floor of the entryway to an office building is in the shape of an isosceles triangle
step 1
Find the measure of the vertex angle
Remember that
The sum of the interior angles in any triangle must be equal to 180 degrees
so
Let
x ---> the measure of the vertex angle of triangle
step 2
Find the length of the congruent sides of triangle
Applying the law of sines
Let
c ----> the length of one congruent side
we have
substitute
solve for b
step 2
Make a scale drawing of the entryway
The scale drawing is 1 cm : 2 cm
That means
1 cm in the drawing represent 2 cm in the actual
or
1 cm in the drawing represent 0.02 m in the actual
Find the dimensions in the drawing
For a=8 m
For b=5.22 m
step 3
Draw the triangle
PLEASE HELP BEST ANSWER GETS BRAINLIEST AND 10 POINTS
John flew a kite. He started flying the kite at 2:20 pm and ended at 3:14 pm. How many minutes did John fly a kite?
Answers
Answer:
94 Minutes.
Step-by-step explanation:Subtract 220 from 314 and you get 94. To check you add 220 to 94 and you get 314. Hope this helped.
I rlly need helppp Pls help first right (or right) =brainliest!
Answers
Answer:
A
Step-by-step explanation:
20 divided by 20 is 1. 1 - 5 is negative 4
Answer:
R = 20
q = 19
Step-by-step explanation:
Have a nice day............
Two linear functions are represented in different formats.
Function 1:
x y
0 −2
2 0
3 1
5 3
Function 2:
Graph of a line passing through the point begin ordered pair negative 2 comma 0 end ordered pair and the point begin ordered pair 0 comma 4 end ordered pair.
Which statements are true?
Select each correct answer.
Function 1 has a greater rate of change than function 2.
Function 2 has a greater rate of change than function 1.
Function 1 has a greater y-intercept than function 2.
Function 2 has a greater y-intercept than function 1.
Answers
The statements that are true are;
Function 2 has a greater rate of change than function 1.
Function 2 has a greater y-intercept than function 1.
Step-by-step explanation:
Given that function 1 has the table;
x y
0 -2
2 0
3 1
5 3
Finding the slope of the linear function gives the rate of change of the function. In this case,
m=Δy/Δx
m=3-1/5-3 = 2/2 =1
The equation of the linear function is given as;
m=Δy/Δx
y-3/x-5= 1
y-3=x-5
y=x-5+3
y=x-2
y-intercept is -2
In function 2, the line passes through points (-2,0) and (0,4)
Finding the slope of the line,
m₁=Δy/Δx
m₁=4-0/0--2
m₁= 4/2 =2
Rate of change is 2
Finding the equation of the line
y-4/x-0 = 2
y-4=2(x-0)
y-4 =2x
y=2x+4
The y-intercept is 4
The statements that are true are;
Function 2 has a greater rate of change than function 1.
Function 2 has a greater y-intercept than function 1.
Gina visited the aquarium with some of her cousins, aunts, and uncles. The group bought 20 admission tickets for $340. Adult tickets cost $20, and children’s tickets cost $15. How many adult tickets and how many children tickets did the group buy?
Write a system of equations.
Answers
Answer:
Look at the attachment
Step-by-step explanation:
There are 12 children tickets did the group buy.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The group bought 20 admission tickets for $340.
And, Adult tickets cost $20, and children’s tickets cost $15.
Let number of children = x
And, Number of adult = y
Hence, We get;
The system of equations are,
x + y = 20
y = 20 - x .. (i)
And, 15x + 20y = 340
3x + 4y = 68 .. (ii)
Substitute the value of y from (i) in (ii);
3x + 4(20 - x) = 68
3x + 80 - 4x = 68
80 - 68 = x
x = 12
Thus, There are 12 children tickets did the group buy.
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ3
Which equations represent linear functions? Check all that apply. (Look at the image)
Answers
Answer:
Equations 2, 3, and 4 are linear
Step-by-step explanation:
Equation 1 is a parabola and equation 5 is a Rational function
IF YOU R GOOD AT CALCULUS PLZ HELP AND IF U STEAL POINTS YOU GET REPORTED
If an object is dropped from a height of 55 feet, the function d=-16t^2+55 gives the height of the object after t seconds. Graph this function. Approximately how long does it take the object to reach the ground (d= 0)?
Answers
Answer:
To find the time to reach ground solve - 16t^2 + 55 = 0
t^2 = 55/16
t = sqrt55 / 4 = 1.85 seconds
Step-by-step explanation:
Plz help ASAP! Show how you did it if possible.
Answers
Answer:
7m^3-11m^2+5m+17
Step-by-step explanation:
it'll be really hard to show work so just trust me on this one-
hope it helps <3
For m^2 : because you are subtracting a positive from a negative, that means you are subtracting, so it would be -11m^2
For m : because you are subtracting a negative from zero, it would turn into a positive, making it just 5
For the constant : subtracting positive 8 from negative 9 makes it a positive from the double negative. Therefore you would add 8+9, giving you 17
FINAL ANSWER : B. (7m^3)-(11m^2)+5m+17
hellp me What is the value of x? (5 points)
Question 7 options:
1)
10
2)
15
3)
30
4)
45
Answers
Explanation: 2x+30=90
-30 -30
2x=60
x=30
Hope this helps! :)
HELP ME PLEASE !!!!!!
Answers
Answer:
in the explanation
Step-by-step explanation:
rs=2^2+4^2=20cm
sq root of 20=4.472135955 (round down to how much you like, probably 1dp)
qt=4^2+8^2=80cm
sq root of 80= 8.94427191
for the other pic just do [tex]\sqrt{80}[/tex] takeaway [tex]\sqrt{20}[/tex], which is 4.472135955 and round down to how much u like
Find each difference
1:9 — 4
2:4 — 9
3:9 — (-4)
4:-9 — (-4)
5:-9 — 4
6:4 — (-9)
7:-4 — (-9)
8:-4 — 9
Answers
-5
5
-5
-13
5
Explain:
Um tell me if you want me to
Answer:
-9
Step-by-step explanation:
Which of the following graphs represents a function?
Answers
Answer:
the one on top
Step-by-step explanation:
Answer:
"the one on the top"
Step-by-step explanation:
EZZZZZZZZZZZZZZZZZZZZZZZz
Can someone help me with my homework
Answers
Answer:
i need a better pic but i can help you
Step-by-step explanation:
ZEARN MATH
can someone plzzzzzzzzzzzzzzzzz log into my account for zearn and do my work or else im gona fail , I will give you 60 Pointsssssss , 5 star , thanks , and brainliest
PLZZZZZZZZZZZZZZZZZZZZ
Only if i can trust you
Answers
Answer:
Just post the questions here on brainly so we can help you answer thwm. Thats what this website is for! =D
Step-by-step explanation:
Answer:your username and pasword
Step-by-step explanation:
Determine whether the graph represents a proportional relationship.
A graph is shown. The x-axis is labeled from 0 to 16. The y-axis is labeled from 0 to 16. Four points are shown on the graph on ordered pairs 0, 4 and 2, 8 and 3, 12 and 4, 16. These points are joined by a line. The label on the x-axis is Number of Boats. The title on the y-axis is Number of Passengers.
Answers
Answer:
It represents a proportional relationship
Step-by-step explanation
I am not good at math so ya
Answer:
Step-by-step explanation:
Yes
Help me, please I'm a little confused I'm very perturbed..
Answers
Answer:
2 6/15 + 2 10/15 or the first one
Step-by-step explanation:
Im so glad I could help! I hope you pick my answer as the Brainliest!
Answer:
Step-by-step explanation:
Since this is a test, I'll give a hint.
This problem can be a little confusing, but thats ok! The problem is trying to make two models, (each model is a number) and asking you to find what the addition sentence is.
If that makes you confused, then that's probably the right response! The first thing you would need to know is what are they dividing the whole circles of? Thirds? Seconds? Sixths?
You would then need to know how many whole numbers are there. "Whole numbers" are basscially fully shaded circles.
Hope this helps!
Please help me. This is due at 12 tonight.
Answers
Answer:
I think the answer is D
Step-by-step explanation:
An interview is
A. a casual conversation with a group of friends.
B. a formal conversation with two or more people.
C. a private conversation between family members.
D. a loud conversation between two neighbors.
Answers
Answer:
B is the answer :-))))
Step-by-step explanation:
have a nice day
Answer:
The Correct answer is B
Step-by-step explanation:
A interview is something formal when applying to a job its not causal because you and the person interviewing you is being very formal its also a conversation including 2 or more people depending on how the company you apply for decides to do there interview hope this helps :)
please help me,, you have to include an explanation !!
Answers
Answer:
1152 ft^2
Step-by-step explanation:
There are 7 faces on this solid.
I will label the faces and will calculate each area with an explanation.
Faces 1 and 2:
The front face and the back face are congruent and have 5 sides each. Each face is a rectangle with a triangle above it. The lower rectangular part has dimensions 9 ft by 12 ft. The triangle above the rectangle has base 9 ft and height 16 ft - 12 ft = 4 ft.
Each face is a rectangle and a triangle.
area = area of rectangle + area of triangle
area = LW + bh/2
area = 9 ft * 12 ft + 9 ft * 4 ft/2 = 108 ft^2 + 18 ft^2 = 126 ft^2
This is area of of face 1, the front face. Face 2, the rear face has the same area.
A1 = 126 ft^2
A2 = 126 ft^2
Face 3: The bottom of the solid is a rectangle measuring 9 ft by 20 ft
area = LW
area = 9 ft * 20 ft = 180 ft^2
A3 = 180 ft^2
Faces 4 and 5:
The left vertical face and the right vertical face are congruent rectangles measuring 12 ft by 20 ft.
area = LW
area = 12 ft * 20 ft = 240 ft^2
A4 = 240 ft^2
A5 = 240 ft^2
Faces 6 and 7 are the top right and left inclined rectangles. They are congruent, and each one has dimensions 6 ft by 20 ft.
area = LW
area = 6 ft * 20 ft = 120 ft^2
We need 2 of these area.
A6 = 120 ft^2
A7 = 120 ft^2
total surface area = A1 + A2 + A3 + A4 + A5 + A6 + A7
total surface area = 126 ft^2 + 126 ft^2 + 180 ft^2 + 240 ft^2 + 240 ft^2 + 120 ft^2 + 120 ft^2
total surface area = 1152 ft^2
help me plz i will give brainliest
Answers
Answer:
a. t = I/Pr
b. The value of t in the table is 3 years
Step-by-step explanation:
Solve for t in the formula.
I = Pr
~Divide pr to both sides
I/Pr = t
Using the formula above, we can solve for t.
75/(500)(0.05) = t
75/25 = t
3 = t
Best of Luck!
GUYS, PLEASE ANSWER MY QUESTION! Please it's due today, everybody else got their questions answered! Listen to me!
Jayden used a Groupon at the local pizza shop. Instead of paying $15, for the pizza, he paid $12.
Haley and Arianna agree that the percent of decrease is 20% but their explanations differ. Haley says to find the 20%, you have to determine what percent of 15 is 12. Arianna thinks you have to determine what percent of 15 is 3. Who is correct?
Answers
Answer:
Arianna is correct
Step-by-step explanation:
She is correct because they need to find how much is the discounted price, which is 3. So to see what percentage it is, they need to see how much 3 is worth in comparison to 15. If we spilt 15 into 5 parts to make every part worth 20%, the answer would be 3. Thus Arianna is correct.
Explain how to solve the equation and how to check the solution.
40 = 8y
there the answers-
Use the inverse operation to isolate the variable. Undo multiplication by dividing by 8 on both sides of the equation. Simplify by completing the divisions, 40 ÷ 8 = 5, and 8 ÷ 8 = 1. The solution is y = 5. Check the solution by substituting 5 for y in the original equation, and then simplify. 8 × 5 = 40 and 40 = 40 is a true statement, so 5 is the solution.
Answers
equations by using inverse operations, including squares, square roots, cubes, ... A pair of inverse operations is defined as two operations that will be ... The following examples summarize how to undo these operations using their ... x is divided by 2, so we multiply by 2 on both sides. 2. 8 2. 2 x. ∙ = ∙. Solution: 16. explanation:
help me please thank you sm
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What is the area of the composite figure?
Answers
Answer:
i think a
Step-by-step explanation:
Answer: I think the answer is A Not sure
Step-by-step explanation:
I need the answer ASAP
Answers
Answer:
72
Step-by-step explanation:
Explanation:
17/5 converted into a mixed number
Answers
Answer:
3 2/5
Step-by-step explanation:
Answer:
3 [tex]\frac{2}{5}[/tex]
Step-by-step explanation:
Use the equation: C=0.5n to determine the cost for 14 hamburgers in dollars
Answers
C stands for the cost, and n would be the amount of hamburgers. Since we are looking to determine the costs of 14 hamburgers we would have to then multiply 0.5 and 14.
14 x 0.5 =7
So your answer is 7 dollars
Can someone please help my teacher just put the question as
b = 14 ft, c = 20 ft
and I am so confused!!
Answers
Answer:
I am not sure because this is just an expression but I have a feeling I know where your teacher is going with this.
Step-by-step explanation:
She is saying the variable B stands for 14 feet and the variable C is 20 feet.
